SARA / Free Tools / CVE / CVE-2018-16880

CVE-2018-16880 — A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] d

A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system pan

CVSS
5.9 MEDIUM
EPSS
0.10% (top 73.00%)
CWE
CWE-787
Published
2019-01-29T16:00:00.000Z
Last modified
2024-08-05T10:32:54.187Z
CVSS vector
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

01What is this vulnerability?

A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. Versions from v4.16 and newer are…

02Affected products

VendorProductVersions
The Linux Foundationkernelfrom v4.16 and newer

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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